Results
95-08-03: This amendment adopts a new airworthiness directive (AD), applicable to General Electric Company (GE) CF6-45/-50 series turbofan engines, that requires reduction of the low cycle fatigue (LCF) retirement lives for certain high pressure turbine rotor (HPTR) stage 2 disks, and would provide a drawdown schedule for those affected parts with reduced LCF retirement lives. This amendment is prompted by the results of a refined life analysis performed by the manufacturer which revealed minimum calculated LCF lives significantly lower than published LCF retirement lives. The actions specified by this AD are intended to prevent a LCF failure of the HPTR stage 2 disk, which could result in an uncontained engine failure and damage to the aircraft.
2023-22-05: The FAA is superseding Airworthiness Directive (AD) 2020-23- 10, which applied to certain Dassault Aviation Model FAN JET FALCON and FAN JET FALCON SERIES C, D, E, F, and G airplanes. AD 2020-23-10 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD continues to require the actions in AD 2020-23-10 and requires revising the existing maintenance or inspection program, as applicable, to incorporate additional new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
2002-17-04: This amendment adopts a new airworthiness directive (AD) that applies to all Ballonbau Worner GmbH (Ballonbau) Model K-630/1-Stu manned free gas balloons. This AD requires you to replace the PVC tubes that cover the steelwire loops of the basket with an electrostatic conductive braided rope. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified by this AD are intended to prevent the chance of an electrostatic charge buildup between the steelwire loops of the basket and the balloon envelope, which could result in ignition of combustible lifting gas fumes in the balloon envelope. Such a condition could lead to gas explosion and fire.
2002-17-02: This amendment supersedes an existing airworthiness directive (AD), that is applicable to certain Pratt & Whitney JT8D series turbofan engines. That AD currently requires revisions to the Time Limits Section (TLS) of the manufacturer's Engine Manuals (EM's) to include required enhanced inspection of selected critical life-limited parts at each piece-part exposure. This amendment requires modification of the airworthiness limitations section of the manufacturer's manual and an air carrier's approved continuous airworthiness maintenance program to incorporate additional inspection requirements. A Federal Aviation Administration (FAA) study of in- service events involving uncontained failures of critical rotating engine parts indicated the need for mandatory inspections. The mandatory inspections are needed to identify those critical rotating parts with conditions, which if allowed to continue in service, could result in uncontained failures. The actions specified by this AD areintended to prevent critical life-limited rotating engine part failure, which could result in an uncontained engine failure and damage to the airplane.
2021-19-10: The FAA is adopting a new airworthiness directive (AD) for certain International Aero Engines, LLC (IAE) PW1122G-JM, PW1124G1-JM, PW1124G-JM, PW1127G1-JM, PW1127GA-JM, PW1127G-JM, PW1129G-JM, PW1130G- JM, PW1133GA-JM, and PW1133G-JM model turbofan engines. This AD was prompted by a root cause analysis of an event involving an uncontained failure of a high-pressure turbine (HPT) disk that resulted in high- energy debris penetrating the engine cowling on an Airbus Model A321- 231 airplane, powered by IAE V2533-A5 model turbofan engines. This AD requires removing certain HPT 1st-stage and HPT 2nd-stage disks from service. The FAA is issuing this AD to address the unsafe condition on these products.
95-05-03: This amendment supersedes an existing airworthiness directive (AD), applicable to Hamilton Standard 14RF series, 14SF series, and Hamilton Standard/British Aerospace 6/5500/F series propellers, that currently requires a one-time ultrasonic shear wave inspection for cracks in the propeller blade taper bore. This amendment requires initial and repetitive ultrasonic shear wave inspections, and a one-time visual and borescope inspection of the taper bore for corrosion as a terminating action to the ultrasonic shear wave inspections. This amendment is prompted by reports of two incidents where a portion of the propeller blade was lost in flight. The actions specified by this AD are intended to prevent loss of a propeller blade due to cracks initiating in the blade taper bore, that can result in possible aircraft damage, and possible loss of aircraft control.
63-05-02: 63-05-02 SIKORSKY: Amdt. 542 Part 507 Federal Register March 6, 1963. Applies to All S-55 Series Helicopters. Compliance required as indicated. There has been a fatigue fracture of the main rotor blade spar. For this reason, accomplish the following: (a) All S14-10-2000 Series main rotor blades with 975 or more hours' time in service as of the effective date of this AD shall be retired from service within the next 25 hours' time in service. (b) All S14-10-2000 Series main rotor blades with less than 975 hours' time in service as of the effective date of this AD shall be retired from service prior to the accumulation of 1,000 hours' time in service. This directive effective March 6, 1963.
2002-17-01: This amendment adopts a new airworthiness directive (AD) that is applicable to certain Learjet Model 45 airplanes. This action requires pulling the FOOT WARM circuit breaker located on the copilot's circuit breaker panel, and installing a collar on that circuit breaker. This action is necessary to prevent an electrical short circuit between the pilot's and copilot's foot warmers and the composite floorboards, which could result in outgassing of the faceply material of the composite floorboards, and consequent smoke in the cockpit. This action is intended to address the identified unsafe condition.
2023-21-06: The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. That AD applies to certain Embraer S.A. (Embraer) Model EMB-505 airplanes. As published, two references to an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC) AD in the preamble Background section are incorrect. This document corrects those errors. In all other respects, the original document remains the same.
2002-16-10: This amendment adopts a new airworthiness directive (AD), applicable to certain Bombardier Model DHC-8-100, -200, and -300 series airplanes, that requires various modifications of the airstair (main passenger) door. This action is necessary to prevent failure of the airstair door to open after a landing, which could result in a blocked escape route during an emergency evacuation. This action is intended to address the identified unsafe condition.